scholarly journals Parameters that Affect Electricity Consumption in Fish Freezing. Case Study

2019 ◽  
Vol 23 (3) ◽  
pp. 15-25
Author(s):  
Edvins Terehovics ◽  
Ivars Veidenbergs ◽  
Dagnija Blumberga

Abstract Reducing energy consumption in industry has become an important aspect on a global scale. Energy efficiency is one way of reducing energy consumption and promoting competitiveness. Increasing energy costs, security of energy supply, emissions from energy production have shown that current freezer design solutions are not sustainable. The food industry has a common tendency, whereby energy costs are only of secondary importance, unlike other production costs, resulting in minimal monitoring of energy consumption. Electricity consumption for freezer operation amounts to 20 % of total electricity consumption. Within the framework of this study, electricity consumption for fish freezing and storing frozen fish and finished products, as well as the coefficient of performance (COP) for compressors and parameters affecting COP were analyzed. From the results it can be concluded that the specific consumption of electricity in freezing of fish is lower than that of frozen fish storage. The two-stage compressor COP ranges from 2.4 to 3.7, but the single-stage compressor COP ranges from 3.7 to 5.5. The pressure in the condenser and ammonia vapor temperature after the compressor is affected by the temperature of the water used to cool the condenser and compressors. As the temperature of the water used for cooling increases, the condenser and ammonia vapor temperature after the compressor increase, which in turn reduces the compressor COP.

2017 ◽  
Vol 26 (3) ◽  
Author(s):  
Mari Rajaniemi ◽  
Tapani Jokiniemi ◽  
Laura Alakukku ◽  
Jukka Ahokas

The aim of this study was to examine the electric energy consumption of milking process on dairy farms and to evaluate the methods to improve the energy efficiency. The electricity consumption of the milking process was measured on three dairy farms in Southern Finland, and it varied between 37–62 Wh kg-1 milk.  The largest energy saving potential was identified in milk cooling and the heating of cleaning water. Even simple methods, such as placing the condenser of the refrigeration system outside, may reduce the energy consumption of milk cooling by 30%. Efficient milk pre-cooling can reduce the energy consumption of the whole milking process by more than 25%. Even larger energy savings are possible with a sophisticated milk cooling – water heating systems. It was concluded that there is a significant potential to reduce the energy consumption and energy costs of the milking process, and thus to improve the profitability and sustainability of the sector at the same time.


2021 ◽  
Vol 937 (2) ◽  
pp. 022091
Author(s):  
T L Ripol-Saragossi ◽  
I A Smychok

Abstract The article considers ways to reduce energy costs in the cold using ozone-safe refrigerants production. In this case, it is necessary to include an air-cooled heat exchanger-pre-condenser in the technological scheme of refrigeration. The conditions for the pre-capacitor for a certain performance selection are formulated. The results of the presented calculations prove a decrease in the annual energy consumption for cold production in comparison with the technological scheme with external cooling and a cascade system. The energy consumption reducing principle of the installation due to the air pre-condenser can also be realized by installing a heat-exchanger on the discharge of low-temperature compressors to heat water for the enterprise needs, receiving free heat energy all year round.


2016 ◽  
Vol 13 (3) ◽  
pp. 4891
Author(s):  
Mustafa Kırlı ◽  
Tekmez Kulu

That the energy, as an important production factor, is a non-replaced element is an undeniable fact while the businesses perform their basic functions. In macro scale the economies of the countries and in micro scale businesses must manage the energy well in order to obtain their goals. In that sense, energy management should be organized as an independent unit within the institutions; it should take precautions to reduce the energy costs and to increase the operation productivity of the businesses. In the modern understanding of business administration, energy management has the functions such as reducing the costs in a business, increasing the competitiveness, increasing the operating profits, increasing the operation productivity, wise use of energy and reducing environmental pollution. Energy accounting is an information system that follows, records and reports the energy consumption and energy costs regularly. Energy accounting has a significant contribution in achieving the expected success of energy management. Energy accounting has benefits in many fields such as reducing energy supply costs, reducing energy consumption costs and making budgets of the business in the context of energy management. Energy accounting motivates and activates all the units of the business in terms of reducing energy costs by performing the duties which are expected from it. Özetİşletmeler temel işlevlerini yerine getirirken, önemli bir üretim faktörü olarak enerjinin; ikame edilemeyecek bir unsur olduğu yadsınamaz bir gerçektir. Makro ölçekte ülke ekonomilerinin ve mikro ölçekte de işletmelerin amaçlarına ulaşabilmeleri için enerjiyi etkin bir şekilde yönetmeleri gerekir. Bu bağlamda, enerji yönetimi, kurumlarda bağımsız bir birim olarak örgütlenmeli; enerji maliyetlerini azaltacak ve işletme faaliyet verimliliğini arttıracak önlemleri almalıdır. Çağdaş işletmecilik anlayışında enerji yönetimi; bir işletmede maliyetlerin azaltılması, rekabet gücünün arttırılması, işletme karlılığının arttırılması, işletme verimliliğinin arttırılması, enerjinin akılcı kullanımı ve çevre kirliliğinin azaltılması gibi işlevlere sahiptir. Enerji muhasebesi, enerji tüketimini ve enerji maliyetlerini düzenli bir şekilde izleyen, kaydeden ve raporlayan bir bilgi sistemidir. Enerji yönetiminin kendisinden beklenen başarıyı sağlamasında; enerji muhasebesinin önemli bir katkısı vardır. Enerji muhasebesi, enerji yönetimi kapsamında işletmelere; enerji tedarik maliyetlerini azaltmada, enerji kullanım maliyetlerini azaltmada, işletme bütçelerinin yapılması gibi bir çok alanda faydalar sağlar. Enerji muhasebesi, kendisinden beklenen görevleri yerine getirerek; işletmenin tüm birimlerini, enerji maliyetlerini düşürme konusunda motive etmekte ve harekete geçirmektedir.


2017 ◽  
Author(s):  
Jorge Martinez-Gil ◽  
Bernhard Freudenthaler ◽  
Thomas Natschlaeger

Reducing energy consumption in buildings of all kinds is a key challenge for researchers since it can help to notably reduce the waste of energy and its associated costs. However, when dealing with residential environments, there is a major problem, people comfort should not be altered, so it is necessary to look for smart methods which take into account this circumstance. Traditional techniques have not considered the study of human behavior when providing solutions in this field, but new human-centric paradigms are emerging gradually. We present our research on user behavior concerning electricity consumption in office buildings and residential environments. Our goal consists of inspiring practitioners in this field for developing new human-aware solutions.


2021 ◽  
Vol 232 ◽  
pp. 03017
Author(s):  
Khalif Ahadi ◽  
Guntur Tri Setiadanu ◽  
Yohanes Gunawan ◽  
Subhan Nafis ◽  
Dedi Suntoro

A fresh fish has a short limited fresh time without treatment. To maintain quality and prevent spoilage, several treatments are carried out especially using a cooling method. In the fish storage industry, most energy consumed by cooling equipment. With the rising of energy prices, the frozen fish industries are looking for possibilities to reduce production costs by saving energy. Energy-saving assessment can be seen from the specific energy consumption (SFC) which is a comparison of the amount energy needed to produce a product (kWh/ton of product). This article will be discussed about data collection and analysis to get the value of SFC for process and storage in the fish freezing and storage services industry. The measurement result shows that the value of SFC for cold storage are 4.2 kWh/ton. The SFC used by the air blast freezer (ABF) with 5 tons capacity are 91 Wh/kg. The consumption of electrical energy in ABF is strongly influenced by matched between the capacity specifications of ABF and the number of fish to be cooled. If the 5 tons ABF is only filled less than 2 tons of fish, the SFC will increase more than 50% up to 145 Wh/kg.


2016 ◽  
Vol 15 (10) ◽  
pp. 7169-7174
Author(s):  
Sakshi Grover ◽  
Mr. Navtej Singh Ghumman

Electricity consumption is set to rise 76% from 2007 to 2030 and datacenters are the main contributors of an important portion of this increase, emphasizes the importance of reducing energy consumption in clouds. Increase in the level of carbon dioxide in our ecosystem is another consequence of this increasing amount of energy consumption by the datacenters. According to Gartner, the Information and communication industry produces 2% of global carbon dioxideemission [10]. Hence, there is a great requirement of making use of more environmentally friendly computing called “Green Cloud Computing” to minimize operational and energy consumption costs and also to reduce the environmentalimpact. In this paper, we have implemented the carbon efficient VM placement and migration technique in cloud sim simulator.


2019 ◽  
Vol 01 (02) ◽  
pp. 31-39 ◽  
Author(s):  
Duraipandian M. ◽  
Vinothkanna R.

The paper proposing the cloud based internet of things for the smart connected objects, concentrates on developing a smart home utilizing the internet of things, by providing the embedded labeling for all the tangible things at home and enabling them to be connected through the internet. The smart home proposed in the paper concentrates on the steps in reducing the electricity consumption of the appliances at the home by converting them into the smart connected objects using the cloud based internet of things and also concentrates on protecting the house from the theft and the robbery. The proposed smart home by turning the ordinary tangible objects into the smart connected objects shows considerable improvement in the energy consumption and the security provision.


Author(s):  
Mohammed Mostafa Abdulghafoor ◽  
Raed Abdulkareem Hasan ◽  
Zeyad Hussein Salih ◽  
Hayder Ali Nemah Alshara ◽  
Nicolae Tapus

Sign in / Sign up

Export Citation Format

Share Document