Sustainable Engineering Principles And Practice 1st Edition Bhavik R. Bakshi - Solutions

According to the Energy Information Administration, CO emissions in the USA in 2007 were 6.0218 billion metric tons (Gt). Calculate the land area that needs to be planted with trees to sequester this emission. Ohio forests sequester carbon at a rate of 130 metric tons/hectare per 100 years. This
The consumption of fossil fuels in 2005 was 7.5 Gt carbon. It has been estimated that 7000 g of ancient biomass was needed to form 1 g of fossil fuel. The current net primary productivity of the Earth is estimated to be 105 Gt carbon per year. This is the average amount of biomass carbon that grows
State three requirements that are common to most definitions of sustainability?
Explain the challenges in determining whether an existing activity is sustainable. Why can sustainability only be known in retrospect or after the fact? Give illustrative examples to support your points.
The green revolution of the 1970s played a crucial role in satisfying global food requirements. It involved the development and adoption of new crop varieties and intensive agriculture. 1. Discuss how solving the problem of providing food for everyone resulted in other unanticipated problems
What is the Jevons paradox?
What is the food versus fuel conflict that was caused by the widespread adoption of biofuels?
On the basis of the history of chlorofluorocarbons described in Box 2.1.Box 2.1: Discuss how this technology resulted in unexpected impacts and shifting of problems from one domain to another. When first developed in the 1930s by Thomas Midgeley at General Motors, CFCs were touted as miracle
Reducing energy consumption per lumen of light is a tame problem, but lighting that reduces total energy consumption is a wicked problem. Explain why this statement is true.
State two characteristics of wicked problems.
Answer the following questions about the definitions of sustainability given in Box 3.1. Box 3.1: 1. Jefferson wrote, "Then, no generation can contract debts greater than may be paid during the course of its own existence." Provide one example with explanation of how your parents' generation has
State the six requirements for the sustainability assessment of a new technology.
For the emerging technologies listed below, discuss whether they will result in any shifting of impacts or in exceeding nature's capacity to supply goods and services. 1. Electric cars. These cars have no tailpipe emissions and are considered to be pollution-free. 2. 3D printing. Unlike
Since ecosystems are self-sustaining, many efforts are being made to develop industrial systems that emulate ecosystems. Describe how such mimicry may be developed, and what could be some of the key similarities between industrial and ecological systems.
A popular thermodynamic reference state used for many decades involves the composition of the atmosphere, the ocean, and the top few meters of the earth's crust. This reference state was devised when the world was empty. Now that the world is full, have the compositions in this reference state
The generation of thermal power requires a large quantity of water for cooling. In arid parts of the world, it is being suggested that power plants could use dry cooling or air cooling technology. Knowing that air cooling involves a smaller heat transfer coefficient, will adoption of this
Conventional engineering focuses on developing technologies for improving efficiency. Explain how efforts toward more efficient light bulbs can result in unintended harm by failing to satisfy the requirements for sustainability.
Explain the terms demand curve, marginal cost curve, and market equilibrium.
What is the present value of $100 of benefit available 50 years from now? You may use discount rates of 1 percent and 3 percent.
State three conditions that need to be satisfied for a free market to be optimally efficient.
Connect the concepts of economic externalities and tragedy of the commons to the problem of carbon emissions. How is the approach of pressure from shareholders on carbon-emitting companies a way of internalizing the externalities? One example of such pressure is at http://nyti.ms/2isXILM.

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