scholarly journals Passive Environmental Control: The Use of Insulated Archival Boxes to Control Fluctuations in Relative Humidity and Temperature

2021 ◽  
Author(s):  
◽  
Andrea Jane Woods
Keyword(s):  
New Zealand ◽  
Relative Humidity ◽  
Environmental Conditions ◽  
Air Conditioning ◽  
Environmental Control ◽  
Hvac Systems ◽  
Data Logger ◽  
Ambient Environment ◽  
Environmental Requirements ◽  
The Difference

<p>Four archival boxes made from different materials, were tested to see how effective they were at stabilizing fluctuations in temperature (T) and relative humidity (RH) and if this method of passive environmental control could meet the environmental requirements of the Archives New Zealand Storage Standard (ANZSS), instead of using heating, ventilation and air conditioning (HVAC)systems. The boxes were placed in an un-insulated attic space in Auckland, New Zealand, during the winter for twelve weeks from June 7, to August 29, 2009. Twenty-four hour samples of T and RH of each box were taken by a Hobo LCD data-logger placed inside the boxes. Another Hobo LCD data-logger was placed in the ambient environment to determine the difference. The main results were; RH fluctuations inside all the boxes met part of Requirement 28, of the ANZSS, during the twelve weeks of the study, by not fluctuating more than 10% over a twenty-four hour period, even though the ambient RH fluctuated by as much 22%. However, although the T inside the boxes mostly fluctuated less than in the ambient environment it did not consistently reach the 4 degree centigrade or below fluctuation level of requirement, 29 of the ANZSS. The conclusion reached from the study is all the archival boxes used in study are effective in controlling fluctuations in RH and T; however, institutions needing to meet the ANZSS will require other methods to control environmental conditions.</p>

scholarly journals Passive Environmental Control: The Use of Insulated Archival Boxes to Control Fluctuations in Relative Humidity and Temperature

2021 ◽  
Author(s):  
◽  
Andrea Jane Woods
Keyword(s):  
New Zealand ◽  
Relative Humidity ◽  
Environmental Conditions ◽  
Air Conditioning ◽  
Environmental Control ◽  
Hvac Systems ◽  
Data Logger ◽  
Ambient Environment ◽  
Environmental Requirements ◽  
The Difference

<p>Four archival boxes made from different materials, were tested to see how effective they were at stabilizing fluctuations in temperature (T) and relative humidity (RH) and if this method of passive environmental control could meet the environmental requirements of the Archives New Zealand Storage Standard (ANZSS), instead of using heating, ventilation and air conditioning (HVAC)systems. The boxes were placed in an un-insulated attic space in Auckland, New Zealand, during the winter for twelve weeks from June 7, to August 29, 2009. Twenty-four hour samples of T and RH of each box were taken by a Hobo LCD data-logger placed inside the boxes. Another Hobo LCD data-logger was placed in the ambient environment to determine the difference. The main results were; RH fluctuations inside all the boxes met part of Requirement 28, of the ANZSS, during the twelve weeks of the study, by not fluctuating more than 10% over a twenty-four hour period, even though the ambient RH fluctuated by as much 22%. However, although the T inside the boxes mostly fluctuated less than in the ambient environment it did not consistently reach the 4 degree centigrade or below fluctuation level of requirement, 29 of the ANZSS. The conclusion reached from the study is all the archival boxes used in study are effective in controlling fluctuations in RH and T; however, institutions needing to meet the ANZSS will require other methods to control environmental conditions.</p>

scholarly journals Personal medicines storage in New Zealand

2013 ◽  
Vol 5 (2) ◽  
pp. 146 ◽  
Author(s):  
Campbell Hewson ◽  
Chong Chi Shen ◽  
Clare Strachan ◽  
Pauline Norris
Keyword(s):  
New Zealand ◽  
Relative Humidity ◽  
Storage Conditions ◽  
Child Safety ◽  
Extreme Temperatures ◽  
Freezing And Thawing ◽  
Data Logger ◽  
Drug Storage ◽  
Storage Methods

INTRODUCTION: Poor storage of medicines can reduce their efficacy, yet little is known about how people store medicines in their homes and elsewhere, why these locations are chosen, and whether the conditions are suitable for medicines storage. AIM: To investigate where medicines are commonly stored in New Zealand households, why, and the typical conditions – temperature and relative humidity – in those places of storage. METHODS: Data from a large qualitative study on the meanings of medicines were analysed to explore where people store medicines in their households, and why. A data logger was used to log temperature and relative humidity in common medicine storage places, such as homes and cars. RESULTS: Kitchens and bathrooms were the most commonly reported storage places, with people influenced by convenience, desire to remember to take medicines, and child safety when deciding where to store medicines. High temperatures and humidity were found in kitchens and bathrooms, extreme temperatures in a car and a backpack, and extremely low temperatures in checked-in luggage on a plane. DISCUSSION: Temperature- and humidity-sensitive medicines should not be stored long-term in common storage locations, such as kitchens and bathrooms. Conditions in these places may not comply with the recommended storage conditions given by the manufacturer. Furthermore, medicines should not be left in backpacks or cars, especially if the vehicle is in the sun. Medicines that may degrade upon freezing and thawing – such as protein-containing medicines, emulsions, suspensions and some solutions – should not be stored in the cargo hold of a plane. KEYWORDS: Drug storage; humidity; New Zealand; temperature

scholarly journals Determining the Modelling Input Parameters for Heating, Ventilation, and Air Conditioning Systems in New Zealand Commercial Buildings

2021 ◽  
Author(s):  
◽  
Anthony Gates
Keyword(s):  
Energy Consumption ◽  
New Zealand ◽  
Air Conditioning ◽  
Energy Performance ◽  
Hvac Systems ◽  
Commercial Buildings ◽  
Hvac System ◽  
Input Parameters ◽  
Parameter Values ◽  
The Ideal

<p>Template energy calculation models that have been produced by the Building Energy End-use Study (BEES) team are used to quickly and reliably model commercial buildings and calculate their energy performance. The template models contain standardised equipment, lighting, and occupancy loads; cooling and heating requirements are calculated using an ideal loads air system. Using seven buildings, Cory et al. 2011a have demonstrated that the template models have the potential to closely match the monthly energy performance of detailed (individually purpose built) models and the real buildings. Three of these models were within the ±5% acceptable tolerance to be considered calibrated. The four template models that were not within the acceptable tolerance have been identified to have complex Heating, Ventilation, and Air Conditioning (HVAC) systems that the ideal loads air systems could not replicate. Because HVAC systems consume one of the largest proportions of energy in commercial buildings, this has a significant impact on the reliability of the template models. To address this issue, a set of detailed HVAC systems were needed to replace the ideal loads air systems. Due to HVAC system parameters not being collected by the BEES team and the lack of published modelling input parameters available, it is unknown what values are reasonable to use in the models. This study used a Delphi survey to collect real building information of the commonly installed HVAC systems in New Zealand commercial buildings. The survey formed a consensus between HVAC engineers that determined what the most commonly installed systems are and their associated performance values. The outcome of the survey was a documented set of system types and modelling input parameters that are representative of New Zealand HVAC systems. The responses of the survey were used to produce a set of HVAC system templates that replace the ideal loads air systems. The HVAC template models updated the software default parameter values with values that are representative of commonly installed systems in New Zealand. The importance of the updated input values was illustrated through a comparison of the calculated monthly energy consumption. The resulting difference in energy consumption using the updated parameter values is typically <5% monthly; at worst it is 75% for Variable Air Volume (VAV) system in the Wellington climate during June.</p>

scholarly journals Modeling and Experimental Investigation of Thermal Comfort and Energy Consumption in a Battery Electric Bus

2021 ◽  
Vol 12 (1) ◽  
pp. 7
Author(s):  
Francesco Cigarini ◽  
Tu-Anh Fay ◽  
Nikolay Artemenko ◽  
Dietmar Göhlich
Keyword(s):  
Energy Consumption ◽  
Thermal Comfort ◽  
Air Conditioning ◽  
Hvac Systems ◽  
State Of Charge ◽  
Hvac System ◽  
Data Logger ◽  
Winter Conditions ◽  
Electric Bus ◽  
Thermal Comfort Model

In battery electric buses (e-buses), the substantial energy consumption of the heating, ventilation, and air conditioning (HVAC) system can cause significant reductions of the available travel range. Additionally, HVAC systems are often operated at higher levels than what required for the thermal comfort of the passengers. Therefore, this paper proposes a method to experimentally investigate the influence of the HVAC system on the energy consumption and thermal comfort in a 12m e-bus. An appropriate thermal comfort model is identified and the required climatic input parameters are selected and measured with self-developed sensor stations. The energy consumption of the e-bus, the state of charge (SoC) of the battery and the available travel range are measured by an embedded data logger. Climatic measurements are then performed with heating on and off on a Berlin bus line in winter conditions. The results show that the energy consumption of the e-bus is increased by a factor of 1.9 with heating on, while both the SoC and travel range are reduced accordingly. Comparing the thermal comfort with heating on and off, a decrease from “comfortable” to “slightly uncomfortable but acceptable” is observed.

scholarly journals Effect of Different Environmental Conditions on Some Haematological Parameters in Cow

2014 ◽  
Vol 14 (4) ◽  
pp. 947-954 ◽  
Author(s):  
Giuseppe Mazzullo ◽  
Claudia Rifici ◽  
Gino Caccamo ◽  
Maria Rizzo ◽  
Giuseppe Piccione
Keyword(s):  
Relative Humidity ◽  
Ambient Temperature ◽  
Environmental Conditions ◽  
Physiological Responses ◽  
Repeated Measure ◽  
Haematological Parameters ◽  
Data Logger ◽  
Temperature Humidity Index ◽  
Measure Analysis ◽  
Humidity Index

Abstract The aim of this study was to establish physiological responses of Piemontese cows to different environmental conditions (ambient temperature, relative humidity and temperature-humidity index). To this end, 43 clinically healthy Piemontese cows aged 2-12 years were used to evaluate the effect of environmental conditions on haematological parameters. For each period, ambient temperature and relative humidity were recorded by means of a data logger and the temperature-humidity index (THI) was calculated as indicator of thermal comfort for cattle. Blood samples were collected at 4 time points under different environmental conditions (T1, T2, T3 and T4) and analysed for haematological parameters. One way repeated measure analysis of variance showed a statistically significant effect of time (P<0.0001) on RBC, Hb, Hct, MCV, MCH, MCHC, Plt, WBC, neutrophils, lymphocytes, monocytes and eosinophils. The majority of haematological values obtained in the present study, even though within the physiological range for cattle, showed that variations in haematological parameters are related to changes in ambient temperature, relative humidity and temperature-humidity index. These results provide insight into the physiological responses of Piemontese cows to different environmental conditions, allowing to better evaluate its ability to adapt and cope with environmental stress.

Monitoring Environmental Conditions with Low-Cost Single Board Computers

2017 ◽  
Vol 46 (4) ◽  
pp. 124-131
Author(s):  
Monica Maceli ◽  
Anthony Cocciolo
Keyword(s):  
Relative Humidity ◽  
Environmental Conditions ◽  
Low Cost ◽  
Building Design ◽  
Hvac Systems ◽  
Ease Of Use ◽  
The Creation ◽  
Do It Yourself ◽  
Commercial Device ◽  
Over Time

Abstract:Controlling environmental conditions is an important component in preserving archives and manuscripts, with building design and HVAC systems widely used to achieve the desired conditions. One tool used for monitoring HVAC systems is the datalogger, which stores data such as temperature and relative humidity. As such devices can be costly and inflexible, this work explores the creation of a do-it-yourself datalogger and compares its accuracy, reliability, extensibility, cost, and ease of use against a popular commercial device. Findings suggest that organizations with sufficiently technology-savvy staff can construct and employ a DIY monitor for approximately one-quarter the price of commercial options, although costs may rise over time for support and maintenance of such systems.

scholarly journals Determining the Modelling Input Parameters for Heating, Ventilation, and Air Conditioning Systems in New Zealand Commercial Buildings

2021 ◽  
Author(s):  
◽  
Anthony Gates
Keyword(s):  
Energy Consumption ◽  
New Zealand ◽  
Air Conditioning ◽  
Energy Performance ◽  
Hvac Systems ◽  
Commercial Buildings ◽  
Hvac System ◽  
Input Parameters ◽  
Parameter Values ◽  
The Ideal

<p>Template energy calculation models that have been produced by the Building Energy End-use Study (BEES) team are used to quickly and reliably model commercial buildings and calculate their energy performance. The template models contain standardised equipment, lighting, and occupancy loads; cooling and heating requirements are calculated using an ideal loads air system. Using seven buildings, Cory et al. 2011a have demonstrated that the template models have the potential to closely match the monthly energy performance of detailed (individually purpose built) models and the real buildings. Three of these models were within the ±5% acceptable tolerance to be considered calibrated. The four template models that were not within the acceptable tolerance have been identified to have complex Heating, Ventilation, and Air Conditioning (HVAC) systems that the ideal loads air systems could not replicate. Because HVAC systems consume one of the largest proportions of energy in commercial buildings, this has a significant impact on the reliability of the template models. To address this issue, a set of detailed HVAC systems were needed to replace the ideal loads air systems. Due to HVAC system parameters not being collected by the BEES team and the lack of published modelling input parameters available, it is unknown what values are reasonable to use in the models. This study used a Delphi survey to collect real building information of the commonly installed HVAC systems in New Zealand commercial buildings. The survey formed a consensus between HVAC engineers that determined what the most commonly installed systems are and their associated performance values. The outcome of the survey was a documented set of system types and modelling input parameters that are representative of New Zealand HVAC systems. The responses of the survey were used to produce a set of HVAC system templates that replace the ideal loads air systems. The HVAC template models updated the software default parameter values with values that are representative of commonly installed systems in New Zealand. The importance of the updated input values was illustrated through a comparison of the calculated monthly energy consumption. The resulting difference in energy consumption using the updated parameter values is typically <5% monthly; at worst it is 75% for Variable Air Volume (VAV) system in the Wellington climate during June.</p>

Disentangling the role of shared ancestry and the environment on leaf stable isotopes

2019 ◽  
Author(s):  
Marko J. Spasojevic ◽  
Sören Weber1
Keyword(s):  
Stable Isotopes ◽  
Environmental Conditions ◽  
Evolutionary History ◽  
Environmental Control ◽  
Phylogenetic Signal ◽  
Individual Species ◽  
Habitat Types ◽  
Δ13c And Δ15n ◽  
Environmental Controls ◽  
Shared Ancestry

Stable carbon (C) and nitrogen (N) isotopes in plants are important indicators of plant water use efficiency and N acquisition strategies. While often regarded as being under environmental control, there is growing evidence that evolutionary history may also shape variation in stable isotope ratios (δ13C and δ15N) among plant species. Here we examined patterns of foliar δ13C and δ15N in alpine tundra for 59 species in 20 plant families. To assess the importance of environmental controls and evolutionary history, we examined if average δ13C and δ15N predictably differed among habitat types, if individual species exhibited intraspecific trait variation (ITV) in δ13C and δ15N, and if there were a significant phylogenetic signal in δ13C and δ15N. We found that variation among habitat types in both δ13C and δ15N mirrored well-known patterns of water and nitrogen limitation. Conversely, we also found that 40% of species exhibited no ITV in δ13C and 35% of species exhibited no ITV in δ15N, suggesting that some species are under stronger evolutionary control. However, we only found a modest signal of phylogenetic conservatism in δ13C and no phylogenetic signal in δ15N suggesting that shared ancestry is a weaker driver of tundra wide variation in stable isotopes. Together, our results suggest that both evolutionary history and local environmental conditions play a role in determining variation in δ13C and δ15N and that considering both factors can help with interpreting isotope patterns in nature and with predicting which species may be able to respond to rapidly changing environmental conditions.

Information support for expert evaluation of the states of the external environment

2020 ◽  
pp. 71-76
Author(s):  
Rasol Murtadha Najah
Keyword(s):  
Decision Making ◽  
Environmental Conditions ◽  
Fuzzy Inference ◽  
Environmental Parameters ◽  
Information Support ◽  
Expert Assessment ◽  
Fuzzy Variables ◽  
Decision Making Models ◽  
The Difference ◽  
State Of The Environment

This article discusses the application of methods to enhance the knowledge of experts to build a decision-making model based on the processing of physical data on the real state of the environment. Environmental parameters determine its ecological state. To carry out research in the field of expert assessment of environmental conditions, the analysis of known works in this field is carried out. The results of the analysis made it possible to justify the relevance of the application of analytical, stochastic models and models based on methods of enhancing the knowledge of experts — experts. It is concluded that the results of using analytical and stochastic objects are inaccurate, due to the complexity and poor mathematical description of the objects. The relevance of developing information support for an expert assessment of environmental conditions is substantiated. The difference of this article is that based on the analysis of the application of expert methods for assessing the state of the environment, a fuzzy logic adoption model and information support for assessing the environmental state of the environment are proposed. The formalization of the parameters of decision-making models using linguistic and fuzzy variables is considered. The formalization of parameters of decision-making models using linguistic and fuzzy variables was considered. The model’s description of fuzzy inference is given. The use of information support for environment state assessment is shown on the example of experts assessing of the land desertification stage.

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