A Study on the Power Consumption Patterns of General Hospital Buildings

2015 ◽  
Vol 1092-1093 ◽  
pp. 573-577
Author(s):  
Myung Kil Yeo ◽  
Kang Guk Lee ◽  
Won Hwa Hong
Keyword(s):  
Power Consumption ◽  
General Hospital ◽  
Power Supply ◽  
Energy Use ◽  
Consumption Patterns ◽  
Basic Data ◽  
Energy Usage ◽  
General Hospitals ◽  
Usage Patterns ◽  
Save Energy

The most important part of energy use in hospital buildings is to identify its usage patterns and maintain power supply even in blackout situations, rather than to save energy. This paper presents the power energy usage patterns of general hospitals as basic data for the establishment of countermeasures in blackout situations.

scholarly journals Practical Model for Energy Consumption Analysis of Omnidirectional Mobile Robot

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1800
Author(s):  
Linfei Hou ◽  
Fengyu Zhou ◽  
Kiwan Kim ◽  
Liang Zhang
Keyword(s):  
Energy Consumption ◽  
Power Consumption ◽  
Mobile Robot ◽  
Load Capacity ◽  
Working Environment ◽  
Energy Consumption Analysis ◽  
Mecanum Wheel ◽  
Save Energy ◽  
Energy Consumption Modeling ◽  
Robot Platform

The four-wheeled Mecanum robot is widely used in various industries due to its maneuverability and strong load capacity, which is suitable for performing precise transportation tasks in a narrow environment. While the Mecanum wheel robot has mobility, it also consumes more energy than ordinary robots. The power consumed by the Mecanum wheel mobile robot varies enormously depending on their operating regimes and environments. Therefore, only knowing the working environment of the robot and the accurate power consumption model can we accurately predict the power consumption of the robot. In order to increase the applicable scenarios of energy consumption modeling for Mecanum wheel robots and improve the accuracy of energy consumption modeling, this paper focuses on various factors that affect the energy consumption of the Mecanum wheel robot, such as motor temperature, terrain, the center of gravity position, etc. The model is derived from the kinematic and kinetic model combined with electrical engineering and energy flow principles. The model has been simulated in MATLAB and experimentally validated with the four-wheeled Mecanum robot platform in our lab. Experimental results show that the accuracy of the model reached 95%. The results of energy consumption modeling can help robots save energy by helping them to perform rational path planning and task planning.

scholarly journals Development of an Optimal Start Control Strategy for a Variable Refrigerant Flow (VRF) System

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 271
Author(s):  
Yusung Lee ◽  
Woohyun Kim
Keyword(s):  
Optimal Control ◽  
Control Strategy ◽  
Predictive Performance ◽  
Building Energy ◽  
Data Driven ◽  
Energy Usage ◽  
Optimal Control Strategy ◽  
Save Energy ◽  
Time Required ◽  
Optimal Control Methods

In this study, an optimal control strategy for the variable refrigerant flow (VRF) system is developed using a data-driven model and on-site data to save the building energy. Three data-based models are developed to improve the on-site applicability. The presented models are used to determine the length of time required to bring each zone from its current temperature to the set point. The existing data are used to evaluate and validated the predictive performance of three data-based models. Experiments are conducted using three outdoor units and eight indoor units on site. The experimental test is performed to validate the performance of proposed optimal control by comparing between conventional and optimal control methods. Then, the ability to save energy wasted for maintaining temperature after temperature reaches the set points is evaluated through the comparison of energy usage. Given these results, 30.5% of energy is saved on average for each outdoor unit and the proposed optimal control strategy makes the zones comfortable.

scholarly journals Static Switching Dynamic Buffer Circuit

2013 ◽  
Vol 2013 ◽  
pp. 1-11
Author(s):  
A. K. Pandey ◽  
R. A. Mishra ◽  
R. K. Nagaria
Keyword(s):  
Power Consumption ◽  
Power Supply ◽  
Loading Condition ◽  
Cmos Technology ◽  
Clock Frequency ◽  
Logic Function ◽  
Output Node ◽  
Switching Dynamic ◽  
Power Delay Product ◽  
Frequency Temperature

We proposed footless domino logic buffer circuit. It minimizes redundant switching at the dynamic and the output nodes. The proposed circuit avoids propagation of precharge pulse to the output node and allows the dynamic node which saves power consumption. Simulation is done using 0.18 µm CMOS technology. We have calculated the power consumption, delay, and power delay product of the proposed circuit and compared the results with the existing circuits for different logic function, loading condition, clock frequency, temperature, and power supply. Our proposed circuit reduces power consumption and power delay product as compared to the existing circuits.

Design and Implementation of a 12-Bit 100MS/s ADC

2012 ◽  
Vol 229-231 ◽  
pp. 1507-1510
Author(s):  
Xiang Ning Fan ◽  
Hao Zheng ◽  
Yu Tao Sun ◽  
Xiang Yan
Keyword(s):  
Power Consumption ◽  
Power Supply ◽  
Stage Structure ◽  
Digital Calibration ◽  
Cmos Process ◽  
Pipelined Adc ◽  
Dynamic Comparator ◽  
Flash Adc ◽  
Design And Implementation ◽  
Two Stages

In this paper, a 12-bit 100MS/s pipelined ADC is designed. Capacitance flip-around structure is used in sample and hold circuit, and bootstrap structure is adopted in sampling switch which has high linearity. Progressively decreasing technology is used to reduce power consumption and circuit area, where 2.5bit/stage structure is used in the first two stages, 1.5bit/stage structure is used for 3rd to 8th stages, and at the end of the circuit is a 2bit-flash ADC. Digital calibration is designed to eliminate the offset of comparators. Switched-capacitor dynamic comparator structure is used to further reduce the power consumption. The ADC is implemented by using TSMC 0.18m CMOS process with die area be 1.23mm×2.3mm. SNDR and SFDR are 65dB and 71.3dB, when sampling at 100MHz sampling clock. The current of the circuit is 96mA under 1.8V power supply.

Consequences of Migrating U.S. Contagious Facilities Into General Hospitals, 1900–1950

2021 ◽  
pp. 193758672110498
Author(s):  
Jeanne Kisacky
Keyword(s):  
General Hospital ◽  
Disease Incidence ◽  
Spatial Separation ◽  
General Hospitals ◽  
Hospital Facility ◽  
Contagious Disease ◽  
Contact Transmission ◽  
History Of ◽  
Isolation Facilities ◽  
Isolation Facility

Until the 1880s, hospitals excluded contagious disease patients from admission because of the danger they posed to other patients; by the 1950s, contagious disease care had literally moved into the general hospital. This article correlates the changing isolation facility designs with changing disease incidence and prevention strategies. It argues that isolation moved into the hospital in stages that have consequence for isolation facility design today. Between the 1890s and 1940s, contagious disease care shifted from remote isolation hospitals (commonly known as pest houses) to separate contagious disease hospitals, to contagious disease “units” adjacent to or within a general hospital facility, and to isolation rooms included in nursing units. The architectural history of isolation facility designs shows that the integration of isolation facilities into general hospitals relied on the success of new aseptic nursing procedures that prevented contact transmission but which downgraded the need for spatial separation to prevent airborne transmission. In the second half of the 20th century, federal funding and standards made isolation rooms in the hospital the norm. This migration coincided with a historically unprecedented reduction in contagious disease incidence produced by successful vaccines and antibiotics. By the 1980s, the rise of new and antibiotic resistant diseases led to extensive redesigns of the in-house isolation rooms to make them more effective. This article suggests that it is time to rethink isolation not just at the detail level but in terms of its location in relation to the general hospital.

Psychogeriatric Care in the General Hospital*

1981 ◽  
Vol 26 (5) ◽  
pp. 334-336 ◽  
Author(s):  
Joel Sadavoy
Keyword(s):  
General Hospital ◽  
Psychiatric Care ◽  
Treatment Approach ◽  
The Elderly ◽  
Term Therapy ◽  
Psychiatric Ward ◽  
Short Term ◽  
General Hospitals ◽  
Organic Brain

This study examines treatment outcome in 52 psychogeriatric patients to help determine the role of the general hospital in psychiatric care of the elderly. The author reviewed the charts of all patients 65 years of age and over admitted to the psychiatric ward from 1974 to 1978. Approximately 80% of this group showed symptom remission. Treatment failures correlated closely with the presence of major organic brain syndrome. Despite an average age of 73.4 years and a high proportion of widowed patients only 10 patients needed new placements on discharge. The author discusses the reluctance of general hospitals to treat the psychogeriatric patient despite the high success rate, the merits of such an active treatment approach and the effect of short-term therapy programs on the treatment of this group.

scholarly journals An optimised system for energy monitoring and data acquisition in substations/domestic applications using IoT

2019 ◽  
Vol 87 ◽  
pp. 01001 ◽  
Author(s):  
V. Badri Rama Krishnan ◽  
Keerthana Sandepudi ◽  
Shaista Gazal
Keyword(s):  
Power Supply ◽  
Communication Protocol ◽  
Electrical Energy ◽  
Energy Monitoring ◽  
Innovative Methods ◽  
Energy Meter ◽  
Consumption Data ◽  
Tariff Rates ◽  
Save Energy ◽  
Reliable Power Supply

The rising demand and tariff rates of electric power have derived the need to develop innovative methods to monitor, manage, economize and save energy. Energy monitoring and conservation are pre-eminent today because of the imbalance between power generation and demand. This paper proposes the outline and application of electrical energy measurement by an Arduino micro-controller that is used to calculate the power consumed by any individual electrical device. The main intention of the presented energy meter is to monitor, acquire and interpret the power consumption data online by integrating smart plugs, sensors at the device level and upload it to the server using IoT based communication protocol. Thus, this project enables the consumer to act accordingly to save power and to render a reliable power supply by making maximum use of energy sources in the cheapest ways.

Sign in / Sign up

Export Citation Format

Share Document