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ID:
065484
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| Publication |
Sep-Oct 2005.
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| 2 |
ID:
180124
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| Summary/Abstract |
Under the double-track price system, alternative energy prices and the spread between liquefied natural gas and pipeline natural gas have created a supply-demand imbalance in China's natural gas market, which poses potential risks to economic development and industrial safety. Based on alternative energy prices, economic development level, and geopolitics, this paper used NARDL (Nonlinear Autoregressive Distributed Lag Model, NARDL) to analyze the effect of the spread on the imbalance in the natural gas market. It was shown that the spread and economic development level had a significant impact on the imbalance. Oil prices and geopolitics didn't have a significant impact in the short term while rising coal prices could alleviate the imbalance. Also, the imbalance and the spread in the natural gas market were likely to form a vicious cycle of mutual increase in the short term. Moreover, the impulse response results showed that the impact intensity of the spread on the natural gas market was greater under the background of “short supply” in 2017. Accordingly, a new pricing policy should be aimed at promoting the market-oriented reform, establishing an asymmetric price adjustment mechanism, and guiding rational consumption.
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| 3 |
ID:
109374
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| Publication |
2011.
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| Summary/Abstract |
The gas engine-driven heat pump (GEHP), which has been considered as a preferable choice in the heating and air-conditioning scheme can make full use of the waste heat from the engine and achieve a higher primary energy ratio (PER) than other forms of heating/cooling systems. In this paper, the relationship between the capacity characteristic of the GEHP and the heating and cooling loads of buildings has been analyzed. Meanwhile the reasons of the imbalance of the urban electricity and natural gas consumptions between summer and winter have been studied. The running characteristic of a water-to-water GEHP has been investigated experimentally and the PER was measured. Based on the analysis and experimental results, it could be concluded that if both the gas-fired boilers and electric air conditioners are replaced by GEHPs in some percentage, we can narrow the gaps between the requirement and provision of electricity and natural gas and balance the seasonal consumption differences of electricity and natural gas between summer and winter simultaneously. In order to improve energy efficiency, environmental quality and energy consumption structure effectively, the governmental incentive policies for promoting use of GEHPs should be formulated in China and some other developing countries.
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