气候变化领域集成服务门户(CCPortal): Sustainable district energy integrating biomass peaking with geothermal baseload heating: A case study of decarbonizing Cornell's energy system

CCPortal

DOI	10.1063/5.0024841
	Sustainable district energy integrating biomass peaking with geothermal baseload heating: A case study of decarbonizing Cornell's energy system
	Kassem N.; Hockey J.; Beyers S.; Lopez C.; Goldfarb J.L.; Angenent L.T.; Tester J.W.
发表日期	2020
ISSN	19417012
卷号	12 期号:6
英文摘要	Many governments and institutions are advocating for higher renewable energy deployment to lower their carbon footprint and mitigate the effects of climate change. Cornell University instituted the "climate action plan"to achieve carbon neutrality, of which geothermal heat extracted from deep rocks (Earth source heat) is a critical component. This paper proposes coupling baseload geothermal heating with energy from waste biomass from Cornell's dairy farms to meet the campus' peak heating demand. The envisioned biomass peaking system, consisting of a hybrid anaerobic digestion/hydrothermal liquefaction/biomethanation process, produces renewable natural gas (RNG) for injection and storage into the natural gas (NG) distribution grid and uses NG withdrawals at times of peak heating demand. We show that 97% of the total annual peak heating demand (9661 MW h) can be met using continuous RNG production using manure from Cornell's 600 dairy cows, which provides 910 × 106 l of RNG/year. The overall RNG system requires $8.9 million of capital investment and, assuming favorable policies, could achieve an effective levelized cost of heat (LCOH) of $32/GJ (minimum RNG selling price) and a net present value of $7.5 million after a 30-year project lifetime. Favorable policies were quantified by examining a range of incentivized prices for RNG injection ($47/MJ) and assuming wholesale utilities costs (NG withdrawals and electric imports). Selling RNG at the New York commercial NG price ($7/GJ) with utilities imports at commercial rates produces an LCOH ($70/GJ) in excess of the RNG selling price, highlighting the importance of carbon credits for financial profitability. © 2020 Author(s).
scopus关键词	Anaerobic digestion; Biomass; Carbon footprint; Climate change; Earth (planet); Fertilizers; Geothermal energy; Geothermal heating; Investments; Natural gas; Sales; Capital investment; Carbon neutralities; Cornell University; Critical component; Distribution grid; Energy from wastes; Financial profitabilities; Renewable energy deployments; Costs
来源期刊	Journal of Renewable and Sustainable Energy
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176583
作者单位	Department of Biological and Environmental Engineering, Riley Robb Hall, Cornell University, Ithaca, NY 14853, United States; Cornell Energy Systems Institute, Cornell University, Ithaca, NY 14853, United States; Cornell Facilities Engineering, Cornell University, 201 Humphreys Service Building, Ithaca, NY 14853, United States; Electrochaea GmbH, Semmelweisstraße 3, Planegg, 82152, Germany; Centrum for Applied Geosciences, University of Tübingen, Schnarrenbergstraße 94-96, Tübingen, 72076, Germany; School of Chemical and Biomolecular Engineering, Olin Hall, Cornell University, Ithaca, NY 14853, United States
推荐引用方式 GB/T 7714	Kassem N.,Hockey J.,Beyers S.,et al. Sustainable district energy integrating biomass peaking with geothermal baseload heating: A case study of decarbonizing Cornell's energy system[J],2020,12(6).
APA	Kassem N..,Hockey J..,Beyers S..,Lopez C..,Goldfarb J.L..,...&Tester J.W..(2020).Sustainable district energy integrating biomass peaking with geothermal baseload heating: A case study of decarbonizing Cornell's energy system.Journal of Renewable and Sustainable Energy,12(6).
MLA	Kassem N.,et al."Sustainable district energy integrating biomass peaking with geothermal baseload heating: A case study of decarbonizing Cornell's energy system".Journal of Renewable and Sustainable Energy 12.6(2020).