scholarly journals Open cycle heat pump development for local resource use

1990 ◽  
Author(s):  
K Patch ◽  
F DiBella ◽  
J Glick ◽  
F Becker
Keyword(s):  
Heat Pump ◽  
Resource Use ◽  
Local Resource ◽  
Open Cycle

scholarly journals Evaluating linkage between operators’ satisfaction and potential of local resources for rural tourism: Evidence from Matsuura in Japan

2010 ◽  
Vol 4 (1-2) ◽  
pp. 33-41 ◽  
Author(s):  
Yasuo Ohe ◽  
Shinichi Kurihara ◽  
Shinpei Shimoura
Keyword(s):  
Resource Use ◽  
Questionnaire Survey ◽  
Educational Program ◽  
Statistical Tests ◽  
Rural Tourism ◽  
Local Resource ◽  
Local Resources ◽  
The Individual ◽  
Direct Feedback ◽  
Local Resource Management

As rural tourism evolves into diversification, the connection between the individual and local resource management is becoming an important issue for the sustainable evolution of rural tourism. To explore this point, we investigated conceptually and empirically whether rural tourism operators’individual satisfaction enhances utilization of local resources and, if so, what mechanism works for it by focusing on rural tourism accompanied by an educational program, i.e. a farm-stay with farm and rural experience services implemented as a part of school trips in Matsuura, Japan. From statistical tests and an econometric estimation based on a questionnaire survey of rural tourism operators we found that operators’individual satisfaction gained from interchange with visitors and direct feedback can positively enhance locally exerted effects that stimulate operators to recognize opportunities within their community and raise the potential for local resource use. Thus, we should strengthen this connection to eventually create a new viable activity.

An open cycle absorption heat pump

1992 ◽  
Vol 12 (5) ◽  
pp. 391-396 ◽  
Author(s):  
R.M. Lazzarin ◽  
G.A. Longo ◽  
F. Piccininni
Keyword(s):  
Heat Pump ◽  
Absorption Heat Pump ◽  
Open Cycle

Integration Design and Performance Analysis of HAT Cycle Incorporated With Absorption Heat Pump

2007 ◽  
Author(s):  
Fan Wei ◽  
Yunhan Xiao ◽  
Shijie Zhang
Keyword(s):  
Power Generation ◽  
Heat Pump ◽  
Combined Heat And Power ◽  
Heat Pumps ◽  
Exhaust Gas ◽  
Water Recovery ◽  
Closed Cycle ◽  
Absorption Heat Pump ◽  
Open Cycle ◽  
Heat Transformer

The humid air turbine (HAT) cycle is a novel advanced gas turbine cycle. However, the conventional HAT cycle has many insufficiencies considering combined heat and power generation, water recovery and exhausts emission with low temperature. This study deals with these problems by integrating absorption heat pumps into the HAT cycle. Six types of absorption heat pumps, including the single stage open cycle absorption heat transformer (connect to the HAT cycle with simple and complex manner respectively), the two stage open cycle absorption heat transformer, the open cycle absorption heat pump with the single pressure, the closed cycle two stage absorption heat transformer and the closed cycle absorption heat pump, are incorporated into the HAT cycle. The integrated systems are simulated. The results indicate that while the electrical efficiency of the original HAT cycle is 56.48%, the cycle efficiencies of the above-mentioned integrated cycles are 50.53%, 55.15%, 51.07%, 46.88%, 57.52% and 46.25%, respectively. Water recovery can be achieved in each integrated system although the recovery effects are quite different. For the open systems, the water recovery levels depend on the pressure difference of the gas and the water. Full water recovery can be realized and the temperature of the exhaust gas can be kept high. The water recovery levels of the closed systems relate to the thermal capacity of the exhaust gas, and the emission of the low temperature exhaust gas is difficult. From the point of view of the combined heat and power generation, the temperature of the exhaust gas does not influence the quantity of the heat supply. Three integrated systems can be applied for the combined heat and power generation, the heat and power efficiency are 62.85%, 76.77% and 63.83% respectively. In general, the advantages of the HAT cycle combined with the absorption heat pump system are verified in the present paper.

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