Power and refrigeration plants for minimum heat exchanger inventory
Article Abstract:
The optimization principle that governs power plants and refrigeration plants is studied. The heat transfer rates in a power plant model and a refrigeration plant model are evaluated based on the systems' thermal conductances. Results show that refrigeration plants with specified mechanical power input can be optimized by minimizing their aggregate heat exchanger inventory. It is also found that a power plant with minimum heat exchanger equipment and fixed power output has the same efficiency as the power plant designed for maximum power.
Publication Name: Journal of Energy Resources Technology
Subject: Science and technology
ISSN: 0195-0738
Year: 1993
User Contributions:
Comment about this article or add new information about this topic:
Vitamin synthesis in plants: Tocopherols and carotenoids
Article Abstract:
Carotenoids and tocopherols are the two most abundant groups of lipid-soluble antioxidants in chloroplasts and are also essential components of animal diets, including humans. Mutant analysis and transgenic studies have provided important insight into the regulation, activities and evolution of individual enzymes and are already providing a knowledge base for breeding and transgenic approaches to modify the types and levels of these important compounds in agricultural crops.
Publication Name: Annual Review of Plant Biology
Subject: Science and technology
ISSN: 1040-2519
Year: 2006
User Contributions:
Comment about this article or add new information about this topic:
Plants and Temperature-[CO.sub.2] Uncoupling
Article Abstract:
Research indicates that oxygen and carbon dioxide isotopes in polar ice caps have been coupled for the past 420,000 years with changes in Earth's temperature. This coupling will continue, with cooling coinciding with low carbon dioxide and warming with higher carbon dioxide.
Publication Name: Science
Subject: Science and technology
ISSN: 0036-8075
Year: 1999
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: One weird elephant. Sea change. Detecting dinosaur DNA
- Abstracts: Concrete deterioration, East Los Angeles county area: case study. In wake of Los Angeles quake
- Abstracts: A model for residual stress in the fabrication of thin glass films. Advanced fabrication and erection techniques for long suspension bridge cables
- Abstracts: Evaluation of new building technology. Metal building systems: a new look. Evaluation of bioaccumulation factors in regulating metals
- Abstracts: A virus with a backbone: zebrafish join thee menagerie of animal models for human embryo development. Taiwanese Animal Phonography