scholarly journals A hybrid district heating substation with an adsorption chiller and PCM storage units: a concept and preliminary study

2021 ◽  
Vol 321 ◽  
pp. 02009
Author(s):  
Arkadiusz Szczęśniak ◽  
Wojciech Bujalski ◽  
Andrzej Grzebielec ◽  
Kamil Futyma ◽  
Jarosław Karwacki ◽  
...  
Keyword(s):  
Heat Pump ◽  
Storage System ◽  
District Heating ◽  
Heating System ◽  
Adsorption Heat ◽  
District Heating System ◽  
Adsorption Chiller ◽  
Adsorption Heat Pump ◽  
Preliminary Study ◽  
Storage Units

Development of the district heating system (DHS) is needed to achieve the Renewable Energy Directive goals. To maintain the economic profitability of DHN, the increase of intensity of heat production/consumption has to be ensured. Well, a known method is a cold production using an adsorption heat pump. However, developing a system suitable for implementation in the district heating companies is very difficult. As a solution, the authors propose a composite substation equipped with the adsorption heat pump and the heat/cold storage system based on a PCM.

scholarly journals Electricity Generation Using a Hybridized Zeolite Adsorption Heat Pump and Heat Engine

2020 ◽  
Vol 12 (4) ◽  
pp. 75
Author(s):  
Linus Kweku Labik ◽  
Bright Kwakye-Awuah ◽  
Baah Sefa-Ntiri ◽  
Eric Kwabena Kyeh Abavare ◽  
Isaac Nkrumah ◽  
...  
Keyword(s):  
Energy Storage ◽  
Heat Pump ◽  
Electricity Generation ◽  
Storage System ◽  
Heat Engine ◽  
Adsorbed Water ◽  
Energy Storage System ◽  
Adsorption Heat ◽  
Average Temperature ◽  
Adsorption Heat Pump

The use of adsorption in Thermal Energy Storage has gained considerable research interest of late. Some applications have focused on the use of TES for transformation of low temperature heat in applications such as cooling and heating. Zeolite and water have been studied as suitable materials. Their characteristics as environmentally friendly materials and high affinity makes them conspicuous. The unique properties of zeolites to hold adsorbed water/heat with very minimal loss is also significant. With the aid of a dynamo, a Stirling engine as heat engine and the adsorption energy storage system serving as heat pump was used to generate electricity. The relationship between electricity generation and temperature was investigated. The obtained average temperature and pressure of the zeolite - water adsorption heat pump was also compared with the basic adsorption cycle.

scholarly journals Some Problems of the Integration of Heat Pump Technology into a System of Combined Heat and Electricity Production

10.14311/212 ◽  
2001 ◽  
Vol 41 (2) ◽  
Author(s):  
G. Böszörményi ◽  
L. Böszörményi
Keyword(s):  
Heat Pump ◽  
District Heating ◽  
Heating System ◽  
Energy Utilization ◽  
Electricity Production ◽  
Geothermal Heat ◽  
District Heating System ◽  
Thermal Output ◽  
Short Period

The closure of a part of the municipal combined heat and power (CHP) plant of Košice city would result in the loss of 200 MW thermal output within a realtively short period of time. The long term development plan for the Košice district heating system concentrates on solving this problem. Taking into account the extremely high (90 %) dependence of Slovakia on imported energy sources and the desirability of reducing the emission of pollutantst the alternative of supplying of 100 MW thermal output from geothermal sources is attractive. However the indices of economic efficiency for this alternative are unsatisfactory. Cogeneration of electricity and heat in a CHP plant, the most efficient way of supplying heat to Košice at the present time. If as planned, geothermal heat is fed directly into the district heating network the efficiency would be greatly reduced. An excellent solution of this problem would be a new conception, preferring the utilization of geothermal heat in support of a combined electricity and heat production process. The efficiency of geothermal energy utilization could be increased through a special heat pump. This paper deals with several aspects of the design of a heat pump to be integrated into the system of the CHP plant.

Study of an innovative ejector heat pump-boosted district heating system

2013 ◽  
Vol 58 (1-2) ◽  
pp. 98-107 ◽  
Author(s):  
Bo Zhang ◽  
Yuanchao Wang ◽  
Lisha Kang ◽  
Jinsheng Lv
Keyword(s):  
Heat Pump ◽  
District Heating ◽  
Heating System ◽  
District Heating System
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