%0 Journal Article
%T Case Studies of Energy Saving and CO<sub>2</sub> Reduction by Cogeneration and Heat Pump Systems
%A Satoru Okamoto
%J Open Journal of Energy Efficiency
%P 107-120
%@ 2169-2645
%D 2013
%I Scientific Research Publishing
%R 10.4236/ojee.2013.22014
%X <p align=\"justify\">
	<span style=\"font-family:Verdana;\">This paper describes two</span><span> </span><span style=\"font-family:Verdana;\">case studies: 1) a cogeneration system of a hospital and 2) a heat pump system installed in an aquarium that uses seawater for latent heat storage</span><span style=\"font-family:Verdana;\">.</span><span> </span><span style=\"font-family:Verdana;\">The cogeneration system is an autonomous system that combines the generation of electrical, heating, and cooling energies in a hospital. Cogeneration systems</span><span> </span><span style=\"font-family:Verdana;\">can provide simultaneous heating and cooling. No technical obstacles were identified for implementing the cogeneration system. The average ratio between electric and thermal loads in the hospital was suitable for</span><span> </span><span style=\"font-family:Verdana;\">the cogeneration system operation. An analysis performed for a non-optimized cogeneration system predicted large potential for energy</span><span> </span><span style=\"font-family:Verdana;\">savings and CO</span><sub><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-family:Verdana;\"> reduction.</span><span> </span><span style=\"font-family:Verdana;\">The heat pump system using a low-temperature unutilized heat source is introduced</span><span> </span><span style=\"font-family:Verdana;\">on a heat</span><span> </span><span style=\"font-family:Verdana;\">source load</span><span> </span><span style=\"font-family:Verdana;\">responsive</span><span> </span><span style=\"font-family:Verdana;\">heat pump system, which combines a load</span><span> </span><span style=\"font-family:Verdana;\">variation responsive heat pump utilizing seawater with a latent heat-storage system (ice and water slurry), using nighttime electric power to level the electric power load. The experimental coefficient of performance (COP) of the proposed heat exchanger from the heat pump system, assisted by using seawater as latent heat</span><span> </span><span style=\"font-family:Verdana;\">storage for cooling, is discussed in detail.</span> 
</p>
%K Cogeneration System
%K Heat Pump System
%K Energy Saving
%K CO&lt
%K sub&gt
%K 2&lt
%K /sub&gt
%K Reduction
%K Hospital
%K Aquarium
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=33047