1 Chapter 14 Built Environment 14 1 List a minimum of two historical cultural community and environmental attributes of your college or university that are worth preserving for future generations Do the same for your hometown Solution Students responses will vary Solutions Manual prepared by Ziad Katirji and Heather E Wright Wendel Environmental Engineering Fundamentals Sustainability Design James R Mihelcic and Julie Beth Zimmerman John Wiley Sons New York 2009 2 14 2 List two distinct wildlife habitats located near your local college or university that are worth preserving for future generations What components of the existing built environment are affecting this biodiversity in a positive or negative way Solution Students responses will vary Solutions Manual prepared by Ziad Katirji and Heather E Wright Wendel Environmental Engineering Fundamentals Sustainability Design James R Mihelcic and Julie Beth Zimmerman John Wiley Sons New York 2009 3 14 3 Your instructor should identify a local woods wetlands meadow or historical community and provide you with a hypothetical built environment project Map the area before development and then after placement of the built environment project Label all the historic cultural social and environmental attributes you wish to preserve after development has occurred Solution Students responses will vary Solutions Manual prepared by Ziad Katirji and Heather E Wright Wendel Environmental Engineering Fundamentals Sustainability Design James R Mihelcic and Julie Beth Zimmerman John Wiley Sons New York 2009 4 14 4 Identify a building on your campus or in your community that has been LEED certified Obtain the scores and determine what percent of the total points were obtained in each of the six evaluation criteria 1 sustainable sites 2 water efficiency 3 energy and atmosphere 4 materials and resources 5 indoor air quality and 6 innovation and design process Solution Students responses will vary Solutions Manual prepared by Ziad Katirji and Heather E Wright Wendel Environmental Engineering Fundamentals Sustainability Design James R Mihelcic and Julie Beth Zimmerman John Wiley Sons New York 2009 5 14 5 Identify a building on your campus or in your community that has been newly constructed but not LEED certified Walk through the building to see if it would obtain LEED credits or meet a prerequisite for the following items For sustainable sites a Credit 4 1 Alternative Transportation Public Transportation Access b Credit 4 2 Alternative Transportation Bicycle Storage Changing Rooms c Credit 7 1 Heat Island Effect NonRoof or Credit 7 2 Heat Island Effect Roof and d Credit 8 Light Pollution Reduction For water efficiency e Credit 1 2 Water Efficient Landscaping No Potable Use or No Irrigation f Credit 2 Innovative Wastewater Technologies and g Credit 3 1 Water Use Reduction 20 Reduction or Credit 3 2 Water Use Reduction 30 Reduction For energy and atmosphere h Credit 2 On Site Renewable Energy For materials and resources i Prereq 1 Storage Collection of Recyclables For indoor environmental quality j Credit 6 1 Controllability of Systems Lighting and k Credit 8 1 Daylight Views Daylight 75 of Spaces or Credit 8 2 Daylight Views Views for 90 of Spaces Solution Students responses will vary Solutions Manual prepared by Ziad Katirji and Heather E Wright Wendel Environmental Engineering Fundamentals Sustainability Design James R Mihelcic and Julie Beth Zimmerman John Wiley Sons New York 2009 6 14 6 Identify the specific building component depicted in Figure 14 6 with a subset of the LEED credits your instructor provides Table 14 2 Solution Students responses will vary Solutions Manual prepared by Ziad Katirji and Heather E Wright Wendel Environmental Engineering Fundamentals Sustainability Design James R Mihelcic and Julie Beth Zimmerman John Wiley Sons New York 2009 7 14 7 a Determine the heat loss in Btu oF day and Btu degree day through a 120 sq ft insulated wall described in the following table b Determine the heat loss through the same wall when a 3 ft by 7 ft door R factor 4 4 is inserted into the wall Component of wall 2 Styrofoam board insulation on outside of wall under siding Old cedar log wall Fiberglass insulation on inside of wall dry wall on inside of wall Inside air film along inside wall Outside air film along outside of wall R value 10 20 11 0 45 0 68 0 17 Solution a The combined R value for the insulated wall is 10 20 11 0 45 0 68 0 17 42 3 Btu ft o F hr 2 1 A t R 1 Btu 24 h Btu Heat loss 120 ft 2 68 085 o 2 o 42 3 ft F h day F day Heat loss 68 1 Btu deg ree day b Wall area 120 ft 2 3 ft 7 ft 99 ft 2 1 Btu 24 h 1 Btu 24 h Heat loss 99 ft 2 21 ft 2 2 o 2 o day 4 4 ft F h day 42 3 ft F h 170 716 Btu Btu 170 7 deg ree day F day o Solutions Manual prepared by Ziad Katirji and Heather E Wright Wendel Environmental Engineering Fundamentals Sustainability Design James R Mihelcic and Julie Beth Zimmerman John Wiley Sons New York 2009 8 14 8 Look up a the total degree days for heating and b total degree days for cooling for your university town or city or hometown Solution Students responses will vary The following two URLs provide a method to look up degree day by city and or zipcode http www cpc noaa gov products analysis monitoring cdus degree days http www degreedays net Solutions Manual prepared by Ziad Katirji and Heather E Wright Wendel Environmental Engineering Fundamentals Sustainability Design James R Mihelcic and Julie Beth Zimmerman John Wiley Sons New York 2009 9 14 9 In Section 14 7 we worked out a problem where the combined heat loss from a hypothetical 3 000 sq ft building was 1 053 Btu degree days Determine the total energy requirements in Btu to heat that hypothetical building in May 2007 for the locations in the following table Location Anchorage Alaska Winslow Arizona Yuma Arizona Rochester New York Pittsburgh Pennsylvania Rapid City South Dakota Heating Degree Days in May 2007 541 70 0 237 106 193 Solution Once the total heat loss in units of Btu oF day is determined that value can be multiplied by the total number of degree days for heating in a particular location for the period of time of interest day month year Location Anchorage Alaska Winslow Arizona Yuma Arizona Rochester New York Pittsburgh Pennsylvania Rapid City South Dakota Heating degree Total energy days in May requirements Btu 2007 569 673 541 70 73 710 0 0 237 249 561 106 111 618 193 203 229 Solutions Manual prepared by Ziad Katirji and Heather E Wright Wendel