For obtaining an optimized design of PHE, a computer aided design tool was developed and the existing technology, economics and environment impact and energy efficiency are taken into account.

在综合考虑技术、经济、环境效益及节能的基础上，论述了对板式换热器优化设计的方法。

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The method is different from traditional sugar refining technology and has such characteristics as short process, high quality and yield, low energy exhausted as well as better economics.

该炼糖方法不同于传统的原糖加工工艺，它具有工艺流程短、质量稳定、产量高、能耗低和效益好等特点。

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The U.S. Department of Energy has funded a clutch of research efforts at the various Energy Frontier Research Centers in an effort to improve the underlying economics of the technology, which is currently too expensive for mainstream markets.

FORBES: The Trillion Mile-Per-Gallon Engine

But in any business struggling for energy and capital, energy efficiency is often the highest-return, lowest-risk investment available, limited less by technology or economics than by culture and imagination.

FORBES: Magazine Article